Axle ball-bearing.



No. 687,405. Patented Nov. 26, l90l.

A. RIEBE.

AXLE BALL BEARING.

(Application filed Apr. 17, 1900.) (No Model.) 3 Sheets-Sheet I.

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No. 687,405. Patented Nov. 26, l90l.

A. RIEBE.

AXLE BALL BEARING.

(Application filed. Apr. 17, 1900.] (No Model.) 3 Shaets-$heet 2.

I wanna shwe'wtow UNrrEo STATES- P TENT Erica,

AUGUST RIEBE, OF BERLIN, GERMANY, ASSIGNOR TO THE FIRM OF DEUTSCHEVVAFFEN- & MUNITIONSFABRIKEN, OF BERLIN, GERMANY.

AXLE BALL=B.EARlNG-.

SPEGIFECATION forming part of Letters Patent No. 687,405, dated November26, 1901.

Application filed April 17, 1900. Serial No. 13,243. (No model.)

To all whom it may concern: Be it known that LAUGUST RIEBE, mechan icalengineer,a subject of the King of Prussia,

German Emperor, residing at 15 Zwinglistrasse, Berlin, Kingdom ofPrussia, German it is difficult to meet the requirement that all therows of balls be equally subjected to the strain of bearing the load. 7V

The invention consists in an improved arrangement which fulfils itsobject for bearings in which the direction of pressure is essentially adefinite one and is especially suitable for axle-bearings of tram-cars.

The essential feature of the improvement consists in an arrangement ofmovable balance cross-bars receiving the load, against each of which tworings of balls bear directly or indirectly, so that they are mutuallymovable and can mutually influence one another in the direction ofequalizingthe pressure as regards small differences in the size of theballs or the races.

In the accompanying drawings, Figure 1 is a longitudinal section, andFig. 2 a crosssection, of an axle-bearing serving as an example ofconstruction, in which axle-bearing the cross-pieces act directly bymeans of plates which straddle the ball-races. Fig. 3 is a longitudinalsection, and Fig. 4 a crosssection, of a form of construction in whichthe cross-pieces themselves are formed as plates and directly supporttheball-races.

In the examples shown the means for resisting the longitudinal or axialthrust on the ends of the bearings are not shown, as only the normalstrain is'intended to come into question in View of the distribution ofthe weight over several rows of balls.

The axle-box g slides, as usual, between guides h of the underframe ofthecarriage or car. A spring-p1ate of the spring suspension is indicatedby a in Figs. 1 and 2, on which plate the weight of the car is received.

The axle-journal z is provided with suitable bearing-rings u, on whichrun the rows of balls, of which there are here four employed. The outerbearing-rings or races 1') belonging thereto are secured againstrotation by means of strips or bars Z and the heads of screws .9, whichscrews serve incidentally for securing in position the closing-plugs ofthe ball-insertion recesses 0n the rings.

The under side of the spring-plate a, on which the axle-box issuspended, is provided with two or as many ridges 'r as there are pairsof rows of balls. The said ridges form leverfulcrums for prismaticcross-pieces b, which are thus movableon a knife-edge, like abalance-beam. Each cross-piece 1) supports a" pair of the rows of balls,such support being effected, according to Figs. 1 and 2, by meansofball-race plates 0, arranged side by side in the casing and so as tobevertically movable. These plates 0 are placed singly upon the rings'0, and by reason of the pressure of the tilting cross-piece b on two ofthe plates 0 the load is evenly distributed over the rows of balls. Ifit be assumed that the size of balls is somewhat different in theadjacent rows of balls or that the races or bearing-surfaces have wornaway somewhat unequally, the even distribution of the load on theball-race rings is secured by the suitable tilting adjustment of thecross-pieces b, the said ball-race rings be ing capable of a mutualadjustment or movement. This condition is not altered even when the axleis placed obliquely to a Vertical plane.

The form of construction shown in Figs. 3 and 4 diifers essentially fromthe one described merely by the cross-pieces, which in this case areindicated by f, having their points of support directly on the rings 2)of the rows of balls. The cross-piecesf have the form of plates and areprovided with a semicircular recess in order to pass over the rings 0),of which each two adjacent ones exert a supporting action on thecorresponding bottom projections of one cross-piece, as shown in Fig. 3.An upper rib 9' on each cross-piece, in combination with a groove i,provided in the upper wall of the axle-box, forms the tilting point orsupport on which the cross-piece can execute the necessary pivotingmovement or oscillation in order to effect an'even distribution of theload.

If it be desired to obtain a swiveling or inobility of the ball-bearingto incline the axle to a vertical plane, the part supporting thecrosspieces f from above may be formed as a separate insertion, as inthe case of the first-described form, which is located in the axle-box,with a spherical or cylindrical outer surface, as shown in dotted linesin the cross-section of the wall in a dome form and indicated in Fig. 3in the insertion-outline.

What I claim is-- In a bearing, the combination with a plurality of rowsof balls and ball-race rings of a balance beam or bar to support ortransmit AUGUST RIEBE.

Witnesses:

HENRY HASPER, WOLDEMAR HAUPT.

